Fred Karger walked into a coffee shop in Manhattan looking every inch the sort of man who wants to be a Republican presidential candidate. The long-time "Grand Old Party" operative, who has served three different Republican presidents, had close-cropped grey hair and wore a sharp blue business suit. He clutched a folder of campaign literature and handed out a T-shirt emblazoned with "Iowa 2012". But one key detail made Karger a little different in a Republican field swirling with names like Jeb Bush, Mitt Romney, Sarah Palin and Mike Huckabee. On his suit lapel Karger wore a badge pairing the...